16563775650342 has 32 divisors (see below), whose sum is σ = 34306299571680. Its totient is φ = 5325205159680.

The previous prime is 16563775650341. The next prime is 16563775650343. The reversal of 16563775650342 is 24305657736561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16563775650341) and next prime (16563775650343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16563775650341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50417623 + ... + 50745090.

It is an arithmetic number, because the mean of its divisors is an integer number (1072071861615).

Almost surely, 2^{16563775650342} is an apocalyptic number.

16563775650342 is an abundant number, since it is smaller than the sum of its proper divisors (17742523921338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16563775650342 is a wasteful number, since it uses less digits than its factorization.

16563775650342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101163688.

The product of its (nonzero) digits is 95256000, while the sum is 60.

The spelling of 16563775650342 in words is "sixteen trillion, five hundred sixty-three billion, seven hundred seventy-five million, six hundred fifty thousand, three hundred forty-two".